Reloading .303 British : Velocity change due to Ambient temperature.
Author: SW28fanSubject: Velocity change due to Ambient temperature.Posted: January 20 2025 at 1:21pmSeveral years ago we held a match with the range covered in snow (Rare event in Texas) and everyone...
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Author: britriflesSubject: Velocity change due to Ambient temperature.Posted: January 20 2025 at 2:27pmFound it, from 2018:Good Double Base Powder ………….. 1.0 fps per deg FAverage Single Base Powder...
View ArticleReloading .303 British : Velocity change due to Ambient temperature.
Author: A square 10Subject: Velocity change due to Ambient temperature.Posted: January 20 2025 at 7:20pmbe interesting to know what powders they used
View ArticleReloading .303 British : Velocity change due to Ambient temperature.
Author: ZedSubject: Velocity change due to Ambient temperature.Posted: January 20 2025 at 10:33pmThanks for the information. I will use these loads in February for an ISR event, that is being shot on...
View ArticleReloading .303 British : Velocity change due to Ambient temperature.
Author: britriflesSubject: Velocity change due to Ambient temperature.Posted: January 21 2025 at 1:53amNorma 202 is a double base stick powder, so expect on the order of 1 fps per deg F. I doubt the...
View ArticleReloading .303 British : Velocity change due to Ambient temperature.
Author: ZedSubject: Velocity change due to Ambient temperature.Posted: January 21 2025 at 3:44amI've been using Federal primers for some time. I have plenty of them for the amount I shoot. I'll let you...
View ArticleReloading .303 British : Velocity change due to Ambient temperature.
Author: britriflesSubject: Velocity change due to Ambient temperature.Posted: January 21 2025 at 4:13amOne other observation, I’ve noted about 30 fps reduction in muzzle velocity after fully cleaning a...
View ArticleReloading .303 British : Velocity change due to Ambient temperature.
Author: Irish BlondeSubject: Velocity change due to Ambient temperature.Posted: January 21 2025 at 4:22amAir density is a variable standing on it's own that can effect velocity. I shoot in 20F. temps...
View ArticleReloading .303 British : Velocity change due to Ambient temperature.
Author: britriflesSubject: Velocity change due to Ambient temperature.Posted: January 21 2025 at 4:28amAir density doesn’t affect muzzle velocity, but it does affect trajectory. You will find this out...
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Reloading .303 British : Velocity change due to Ambient temperature.
Author: Sapper740Subject: Velocity change due to Ambient temperature.Posted: January 21 2025 at 5:34am britrifles wrote:Air density doesn’t affect muzzle velocity, but it does affect trajectory. You...
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Author: britriflesSubject: Velocity change due to Ambient temperature.Posted: January 21 2025 at 6:23amYup. Air density drops with increasing elevation above sea level. That reduced drag on the...
View ArticleReloading .303 British : Effect of Primer Selection on Muzzle Velocity
Author: ShamuSubject: Effect of Primer Selection on Muzzle VelocityPosted: January 25 2025 at 3:51pmDo you crimp?
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Reloading .303 British : Effect of Primer Selection on Muzzle Velocity
Author: britriflesSubject: Effect of Primer Selection on Muzzle VelocityPosted: January 25 2025 at 4:13pm Shamu wrote:Do you crimp?No, never shown before to be an advantage. Not to me anyway.
View ArticleReloading .303 British : Effect of Primer Selection on Muzzle Velocity
Author: ShamuSubject: Effect of Primer Selection on Muzzle VelocityPosted: January 25 2025 at 6:48pmHave you ever tried reducing the expander ball slightly by polishing with a very fine abrasive?It...
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Reloading .303 British : Effect of Primer Selection on Muzzle Velocity
Author: britriflesSubject: Effect of Primer Selection on Muzzle VelocityPosted: January 25 2025 at 7:05pm Shamu wrote:Have you ever tried reducing the expander ball slightly by polishing with a very...
View ArticleReloading .303 British : Effect of Primer Selection on Muzzle Velocity
Author: ShamuSubject: Effect of Primer Selection on Muzzle VelocityPosted: January 26 2025 at 11:12amWhen was the scope last serviced?I had a Hensoldt Ferro ZF24 that had a reticle that always "settled...
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Reloading .303 British : Effect of Primer Selection on Muzzle Velocity
Author: britriflesSubject: Effect of Primer Selection on Muzzle VelocityPosted: January 26 2025 at 11:33amFunny you should ask that Shamu. I just check the scope graticule movement by carefully...
View ArticleReloading .303 British : Effect of Primer Selection on Muzzle Velocity
Author: ShamuSubject: Effect of Primer Selection on Muzzle VelocityPosted: January 26 2025 at 4:38pmI wasn't about to mention that but it IS a valid thought. Why it would be mainly vertical makes me...
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Author: britriflesSubject: Effect of Primer Selection on Muzzle VelocityPosted: January 27 2025 at 3:56amWell, truth be told, I’m seeing larger lateral dispersions too, particularly on this last test...
View ArticleReloading .303 British : Effect of Primer Selection on Muzzle Velocity
Author: britriflesSubject: Effect of Primer Selection on Muzzle VelocityPosted: January 27 2025 at 8:07amI've plotted up the Horizontal POI spreads vs muzzle velocity. This confirms my suspicion that...
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